/* ============================================================
   SANDSTREAM — portfolio.css
   Layout + components. Tokens live in colors_and_type.css.
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, p { margin: 0; }
::selection { background: var(--signal); color: var(--bone-50); }
a { color: inherit; text-decoration: none; }

.page { min-height: 100vh; }

/* ── Rail ── */
.rail {
  position: fixed; left: 0; top: 0;
  width: 220px; height: 100vh;
  padding: 32px 24px;
  display: flex; flex-direction: column; justify-content: space-between;
  border-right: 1px solid var(--border);
  background: var(--bg);
  z-index: 50;
}
.rail-bottom {
  display: flex; flex-direction: column; gap: 6px;
  font-family: var(--font-mono); font-size: 10px;
  text-transform: uppercase; letter-spacing: 0.1em; color: var(--fg-2);
}
.rail-bottom .row { display: flex; justify-content: space-between; gap: 8px; }
.rail-bottom b { color: var(--fg); font-weight: 500; }

/* ── Wordmark ── */
.wordmark {
  font-family: var(--font-display); font-size: 28px; line-height: 1;
  color: var(--fg); letter-spacing: -0.02em;
  display: inline-flex; align-items: baseline; cursor: pointer;
}
.wordmark .it { font-style: italic; color: var(--signal); }
.wordmark .tld-dot { color: var(--signal); }

/* Wordmark morph */
.wm-morph { position: relative; }
.wm-ghost { visibility: hidden; pointer-events: none; user-select: none; }
.wm-v {
  position: absolute; top: 0; left: 0;
  opacity: 0; filter: blur(10px);
  transform: scale(0.96); transform-origin: left bottom;
  transition: opacity 450ms cubic-bezier(0.22,1,0.36,1), filter 450ms cubic-bezier(0.22,1,0.36,1), transform 450ms cubic-bezier(0.22,1,0.36,1);
  white-space: nowrap; pointer-events: none;
}
.wm-v.wm-in { opacity: 1; filter: blur(0); transform: scale(1); pointer-events: auto; }
.wm-v.wm-out { opacity: 0; filter: blur(14px); transform: scale(1.03); }

/* ── Nav ── */
.nav { display: flex; flex-direction: column; gap: 14px; margin-top: 36px; }
.nav a {
  font-family: var(--font-mono); font-size: 11px;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--fg-2); transition: color 140ms var(--ease-out);
  display: inline-flex; align-items: center; gap: 10px; cursor: pointer;
}
.nav a::before { content: attr(data-num); color: var(--fg-3); font-weight: 400; }
.nav a:hover, .nav a.active { color: var(--fg); }
.nav a:hover::before, .nav a.active::before { color: var(--signal); }

/* ── Lang button ── */
.lang-btn {
  margin-top: 20px;
  font-family: var(--font-mono); font-size: 10px;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--fg-3); background: none; border: 1px solid var(--border);
  cursor: pointer; padding: 5px 10px; border-radius: 4px;
  transition: color 140ms, border-color 140ms;
  display: inline-flex; align-items: center; gap: 6px; align-self: flex-start;
}
.lang-btn:hover { color: var(--signal); border-color: var(--signal); }
.lang-btn .active-lang { color: var(--fg); font-weight: 500; }

/* ── Main ── */
.main { margin-left: 220px; }

/* ── Sections ── */
.section {
  padding: 96px 64px;
  border-bottom: 1px solid var(--border);
  position: relative;
}
.section.dark {
  background: var(--ink-900); color: var(--bone-50);
  border-color: var(--ink-700); overflow: hidden;
}
.section.dark::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: var(--grain);
  opacity: 0.12; mix-blend-mode: overlay; z-index: 0;
}
.section.dark > * { position: relative; z-index: 1; }

.section-label {
  font-family: var(--font-mono); font-size: 11px;
  text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--fg-2); margin-bottom: 28px;
  display: flex; align-items: center; gap: 8px;
}
.section.dark .section-label { color: var(--ink-300); }
.section-label .num { color: var(--signal); }
.section-label .bar { flex: 1; height: 1px; background: var(--border); max-width: 80px; }
.section.dark .section-label .bar { background: var(--ink-600); }

/* ── Hero ── */
.hero {
  padding: 88px 64px 96px; background: var(--bg);
  min-height: 100vh; display: flex; flex-direction: column;
  justify-content: space-between;
}
.hero-meta {
  display: flex; justify-content: space-between; align-items: flex-start;
  font-family: var(--font-mono); font-size: 11px;
  text-transform: uppercase; letter-spacing: 0.1em; color: var(--fg-2);
}
.hero-meta b { color: var(--fg); font-weight: 500; }
.hero-meta .grp { display: flex; flex-direction: column; gap: 6px; }
.hero-meta .grp.right { align-items: flex-end; text-align: right; }
.hero-meta .grp span { white-space: nowrap; }

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(72px, 11.5vw, 168px);
  line-height: 0.96; letter-spacing: -0.025em;
  color: var(--fg); text-wrap: balance;
  margin: 64px 0 24px; max-width: 13ch;
}
.hero-headline em { font-style: italic; }
.hero-sub {
  font-family: var(--font-sans);
  font-size: clamp(17px, 1.4vw, 22px);
  line-height: 1.45; color: var(--fg-2);
  max-width: 56ch; margin-bottom: 40px;
}
.hero-cta-row { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }

/* ── Buttons ── */
.btn {
  font-family: var(--font-sans); font-size: 14px; font-weight: 500;
  line-height: 1; padding: 14px 22px;
  border: 1px solid transparent; cursor: pointer;
  transition: background 140ms var(--ease-out), color 140ms var(--ease-out), border-color 140ms var(--ease-out);
  display: inline-flex; align-items: center; gap: 10px;
  border-radius: 8px; text-decoration: none;
}
.btn:active { transform: scale(0.98); transition: transform 90ms var(--ease-spring); }
.btn-primary { background: var(--signal); color: var(--bone-50); }
.btn-primary:hover { background: var(--signal-hover); }
.btn-ghost { background: transparent; color: var(--fg); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--fg); }
.btn-arrow { font-family: var(--font-mono); }

/* ── About ── */
.about-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 64px; align-items: start; }
.about-portrait {
  width: 100%; background: #000; position: relative;
  overflow: hidden; aspect-ratio: 4/5; border: 1px solid var(--ink-700);
}
.about-portrait .corner {
  position: absolute; top: 12px; left: 12px;
  font-family: var(--font-mono); font-size: 10px;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--bone-200); padding: 4px 8px;
  border: 1px solid rgba(255,255,255,0.2); background: rgba(0,0,0,0.4);
}
.about-portrait img {
  position: absolute; inset: 0;
  width: 100%; height: 100%; object-fit: cover;
  object-position: center top; filter: contrast(1.02);
  opacity: 0; filter: blur(10px) contrast(1.02);
  transition: opacity 600ms cubic-bezier(0.22,1,0.36,1), filter 600ms cubic-bezier(0.22,1,0.36,1);
}
.about-portrait img.p-active { opacity: 1; filter: blur(0) contrast(1.02); }
.portrait-toggle {
  position: absolute; bottom: 12px; right: 12px;
  font-family: var(--font-mono); font-size: 10px;
  text-transform: uppercase; letter-spacing: 0.1em;
  background: rgba(0,0,0,0.5); border: 1px solid rgba(255,255,255,0.2);
  color: var(--bone-200); padding: 4px 10px;
  display: flex; gap: 8px; align-items: center;
  pointer-events: none;
}
.portrait-toggle span.pt-active { color: var(--signal); }
.about-body { display: flex; flex-direction: column; gap: 24px; max-width: 56ch; }
.about-h {
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 64px);
  line-height: 1.02; letter-spacing: -0.02em;
  color: var(--fg); text-wrap: balance;
}
.about-h em { font-style: italic; }
.about-p { font-family: var(--font-sans); font-size: 17px; line-height: 1.6; color: var(--fg); }
.about-p.muted { color: var(--fg-2); }
.about-stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  margin-top: 24px; border-top: 1px solid var(--border);
}
.stat { padding: 22px 16px 0 0; border-right: 1px solid var(--border); }
.stat:last-child { border-right: none; padding-right: 0; }
.stat:not(:first-child) { padding-left: 16px; }
.stat .n {
  font-family: var(--font-display); font-size: 56px;
  line-height: 1; color: var(--fg); letter-spacing: -0.02em;
}
.stat .l {
  font-family: var(--font-mono); font-size: 10px;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--fg-2); margin-top: 8px;
}

/* ── Cases ── */
.cases-head {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 64px; align-items: end; margin-bottom: 56px;
}
.cases-title {
  font-family: var(--font-display);
  font-size: clamp(56px, 7vw, 96px);
  line-height: 0.98; letter-spacing: -0.02em;
  color: inherit; text-wrap: balance;
}
.cases-title em { font-style: italic; }
.cases-intro {
  font-family: var(--font-sans); font-size: 17px;
  line-height: 1.6; color: var(--ink-300); max-width: 48ch;
}
.cases-grid { display: flex; flex-direction: column; }
.case {
  display: grid; grid-template-columns: 88px 1fr 1fr;
  gap: 32px; padding: 36px 0;
  border-top: 1px solid var(--ink-700); align-items: start;
  transition: padding-left 240ms var(--ease-out);
}
.case:hover { padding-left: 12px; }
.case:last-child { border-bottom: 1px solid var(--ink-700); }
.case-num {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.12em; color: var(--ink-400);
  text-transform: uppercase; padding-top: 8px;
}
.case-title-block { display: flex; flex-direction: column; gap: 10px; }
.case-name {
  font-family: var(--font-display); font-size: 56px;
  line-height: 0.98; letter-spacing: -0.02em; color: var(--bone-50);
}
.case-name em { font-style: italic; }
.case-tagline { font-family: var(--font-sans); font-size: 14px; color: var(--ink-300); }
.case-body { display: flex; flex-direction: column; gap: 14px; padding-top: 6px; }
.case-desc {
  font-family: var(--font-sans); font-size: 15px;
  line-height: 1.65; color: var(--bone-200);
}
.case-meta {
  display: flex; gap: 16px; flex-wrap: wrap;
  font-family: var(--font-mono); font-size: 10px;
  text-transform: uppercase; letter-spacing: 0.1em; color: var(--ink-400);
}
.case-meta b { color: var(--bone-50); font-weight: 500; }
.case-link {
  margin-top: 6px;
  font-family: var(--font-sans); font-size: 14px; font-weight: 500;
  color: var(--bone-50); display: inline-flex; align-items: center; gap: 8px;
  transition: color 140ms; align-self: flex-start;
  border-bottom: 1px solid currentColor; padding-bottom: 2px;
}
.case-link:hover { color: var(--signal); }

/* ── Music ── */
.music-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-top: 48px; }
.music-card { border: 1px solid var(--border); padding: 32px; transition: border-color 140ms var(--ease-out); }
.music-card:hover { border-color: var(--fg); }
.music-tag {
  font-family: var(--font-mono); font-size: 10px;
  text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--signal); margin-bottom: 16px;
}
.music-name {
  font-family: var(--font-display); font-size: 40px;
  line-height: 1; letter-spacing: -0.02em;
  color: var(--fg); margin-bottom: 16px;
}
.music-name em { font-style: italic; }
.music-desc {
  font-family: var(--font-sans); font-size: 15px;
  line-height: 1.55; color: var(--fg-2); margin-bottom: 20px;
}
.music-links { display: flex; gap: 12px; flex-wrap: wrap; }
.card-link {
  font-family: var(--font-sans); font-size: 13px; font-weight: 500;
  color: var(--fg); display: inline-flex; align-items: center; gap: 6px;
  border-bottom: 1px solid var(--border); padding-bottom: 2px;
  transition: color 140ms, border-color 140ms;
}
.card-link:hover { color: var(--signal); border-color: var(--signal); }

/* ── Roles ── */
.roles { display: grid; grid-template-columns: 220px 1fr; gap: 64px; }
.roles-intro h2 {
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 64px);
  line-height: 1; letter-spacing: -0.02em; margin: 0; color: var(--fg);
}
.roles-intro h2 em { font-style: italic; }
.roles-intro p {
  margin-top: 18px; font-family: var(--font-sans);
  font-size: 14px; line-height: 1.55; color: var(--fg-2);
}
.roles-list { display: flex; flex-direction: column; }
.role {
  display: grid; grid-template-columns: 120px 1fr auto;
  gap: 24px; padding: 20px 0;
  border-top: 1px solid var(--border); align-items: start;
  transition: background 140ms, padding-left 240ms var(--ease-out);
}
.role:hover { background: var(--surface); padding-left: 12px; }
.role:last-child { border-bottom: 1px solid var(--border); }
.role-when {
  font-family: var(--font-mono); font-size: 11px;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--fg-2); padding-top: 3px;
}
.role-title { font-family: var(--font-sans); font-size: 18px; font-weight: 500; color: var(--fg); letter-spacing: -0.01em; }
.role-title .org { font-family: var(--font-display); font-style: italic; font-weight: 400; color: var(--fg-2); margin-left: 6px; }
.role-tag {
  font-family: var(--font-mono); font-size: 10px;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--fg-3); text-align: right; white-space: nowrap; padding-top: 5px;
}
.role-desc {
  grid-column: 2 / -1;
  font-family: var(--font-sans); font-size: 14px;
  line-height: 1.55; color: var(--fg-2); margin: 4px 0 0;
}

/* ── Contact ── */
.contact {
  background: var(--ink-900); color: var(--bone-50);
  padding: 96px 64px 64px; position: relative; overflow: hidden;
}
.contact::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: var(--grain); opacity: 0.1; mix-blend-mode: overlay;
}
.contact > * { position: relative; z-index: 1; }
.contact-title {
  font-family: var(--font-display);
  font-size: clamp(72px, 10vw, 144px);
  line-height: 0.96; letter-spacing: -0.025em;
  color: var(--bone-50); text-wrap: balance;
  margin: 0 0 40px; max-width: 14ch;
}
.contact-title em { font-style: italic; }
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr 1fr;
  gap: 40px; margin-top: 48px; padding-top: 32px;
  border-top: 1px solid var(--ink-700);
}
.contact-col { display: flex; flex-direction: column; gap: 10px; }
.contact-col .lbl {
  font-family: var(--font-mono); font-size: 10px;
  text-transform: uppercase; letter-spacing: 0.12em; color: var(--ink-300);
}
.contact-col a, .contact-col .v {
  font-family: var(--font-display); font-size: 28px;
  line-height: 1.1; color: var(--bone-50);
  letter-spacing: -0.01em; transition: color 140ms;
}
.contact-col a:hover { color: var(--signal); }
.contact-col .v.sm {
  font-family: var(--font-sans); font-size: 14px;
  color: var(--ink-200); line-height: 1.45;
}

/* ── Footer ── */
.footer {
  padding: 32px 64px; background: var(--ink-900); color: var(--ink-300);
  border-top: 1px solid var(--ink-700);
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-mono); font-size: 10px;
  text-transform: uppercase; letter-spacing: 0.1em;
  position: relative; z-index: 1;
}
.footer .wm-sm {
  font-family: var(--font-display); font-size: 14px;
  text-transform: none; letter-spacing: -0.01em; color: var(--bone-50);
}

/* ── Float pill ── */
.float-pill {
  position: fixed; bottom: 24px; right: 24px;
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 18px 12px 14px; border-radius: 999px;
  background: rgba(14,26,26,0.88);
  backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
  color: var(--bone-50); border: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 2px 0 rgba(14,26,26,0.05), 0 24px 48px -24px rgba(14,26,26,0.5);
  font-family: var(--font-sans); font-size: 13px; font-weight: 500;
  cursor: pointer; z-index: 100;
  transition: transform 200ms var(--ease-out), background 80ms var(--ease-out), color 80ms var(--ease-out), border-color 80ms var(--ease-out);
}
.float-pill:hover { transform: translateY(-2px); }
.float-pill.on-dark { background: rgba(244,242,236,0.92); color: var(--ink-900); border-color: rgba(14,26,26,0.1); }
.float-pill .dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--signal);
  animation: pulseSignal 2.2s infinite;
}
@keyframes pulseSignal {
  0%, 100% { box-shadow: 0 0 0 0 rgba(30,138,138,0.4); }
  50% { box-shadow: 0 0 0 8px rgba(30,138,138,0); }
}

/* ── Animations ── */
@keyframes fadeUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
.fade-up { animation: fadeUp 420ms cubic-bezier(0.22,1,0.36,1) both; }
.fade-up-1 { animation-delay: 60ms; }
.fade-up-2 { animation-delay: 120ms; }
.fade-up-3 { animation-delay: 180ms; }
@media(prefers-reduced-motion: reduce) { .fade-up { animation: none; opacity: 1; } }

/* ── Touch: no sticky hover states ── */
@media(hover: none) {
  .case:hover { padding-left: 0; }
  .role:hover { background: transparent; padding-left: 0; }
  .float-pill:hover { transform: none; }
  .music-card:hover { border-color: var(--border); }
  .btn-primary:hover { background: var(--signal); }
  .btn-ghost:hover { border-color: var(--border); }
  .case:active { opacity: 0.8; }
  .role:active { opacity: 0.8; }
  .float-pill:active { transform: scale(0.97); }
}

/* ── Mobile bar & overlay ── */
.mobile-bar {
  display: none; position: fixed; top: 0; left: 0; right: 0; height: 56px;
  padding: 0 20px; align-items: center; justify-content: space-between;
  background: var(--bg); border-bottom: 1px solid var(--border); z-index: 60;
}
.hamburger {
  background: none; border: none; cursor: pointer; color: var(--fg);
  padding: 8px; margin: -8px;
  display: flex; flex-direction: column; gap: 5px; width: 36px; align-items: flex-end;
}
.hamburger span { display: block; height: 1.5px; background: currentColor; transition: all 220ms var(--ease-out); }
.hamburger span:nth-child(1) { width: 22px; }
.hamburger span:nth-child(2) { width: 16px; }
.hamburger span:nth-child(3) { width: 22px; }
.hamburger.open span:nth-child(1) { width: 22px; transform: rotate(45deg) translate(4.5px, 4.5px); }
.hamburger.open span:nth-child(2) { opacity: 0; width: 0; }
.hamburger.open span:nth-child(3) { width: 22px; transform: rotate(-45deg) translate(4.5px, -4.5px); }

.mobile-nav-overlay {
  position: fixed; inset: 0; z-index: 55; background: var(--bg);
  display: flex; flex-direction: column; justify-content: center; padding: 0 32px;
  transform: translateX(100%); transition: transform 320ms var(--ease-out); pointer-events: none;
}
.mobile-nav-overlay.open { transform: translateX(0); pointer-events: all; }
.mobile-nav-links { display: flex; flex-direction: column; }
.mobile-nav-links a {
  font-family: var(--font-display); font-size: clamp(36px, 10vw, 52px);
  line-height: 1.08; letter-spacing: -0.025em; color: var(--fg);
  display: flex; align-items: baseline; gap: 14px;
  border-bottom: 1px solid var(--border); padding: 16px 0; transition: color 140ms;
}
.mobile-nav-links a:first-child { border-top: 1px solid var(--border); }
.mobile-nav-links a:hover, .mobile-nav-links a.active { color: var(--signal); }
.mobile-nav-links .mn {
  font-family: var(--font-mono); font-size: 11px;
  text-transform: uppercase; letter-spacing: 0.1em; color: var(--fg-3);
}
.mobile-nav-links a.active .mn { color: var(--signal); }

/* ── Responsive ── */
@media(max-width: 1024px) {
  .rail { width: 180px; padding: 24px 18px; }
  .main { margin-left: 180px; }
  .section, .hero, .contact { padding-left: 40px; padding-right: 40px; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .roles { grid-template-columns: 1fr; gap: 32px; }
  .cases-head { grid-template-columns: 1fr; gap: 24px; }
  .case { grid-template-columns: 60px 1fr; }
  .case-body { grid-column: 1 / -1; padding-left: 60px; padding-top: 0; }
  .music-grid { grid-template-columns: 1fr; }
}
@media(max-width: 720px) {
  .mobile-bar { display: flex; }
  .rail { display: none; }
  .main { margin-left: 0; padding-top: 56px; }
  html { scroll-padding-top: 64px; }
  .section, .contact { padding-left: 24px; padding-right: 24px; }
  .hero { padding-left: 24px; padding-right: 24px; padding-top: 40px; min-height: calc(100vh - 56px); }
  .hero-headline { font-size: clamp(52px, 13vw, 96px); }
  .hero-meta .grp.right { display: none; }
  .contact-grid { grid-template-columns: 1fr; gap: 28px; }
  .contact-col a, .contact-col .v { font-size: 22px; }
  .footer { flex-direction: column; gap: 12px; padding: 24px; }
  .cases-head { grid-template-columns: 1fr; gap: 16px; }
  .case { grid-template-columns: 1fr; gap: 8px; padding: 28px 0; }
  .case-num { font-size: 10px; padding-top: 0; }
  .case-body { grid-column: auto; padding-left: 0; padding-top: 0; }
  .case-name { font-size: clamp(32px, 9vw, 40px); }
  .about-stats { grid-template-columns: 1fr 1fr; }
  .stat:nth-child(3) { grid-column: 1 / -1; border-right: none; padding-left: 0; padding-top: 16px; border-top: 1px solid var(--border); }
  .roles { grid-template-columns: 1fr; gap: 24px; }
  .role { grid-template-columns: 90px 1fr; }
  .role-tag { display: none; }
  .music-grid { grid-template-columns: 1fr; }
  .float-pill { bottom: 20px; right: 16px; }
}